About 1,466,422 results (5,153 milliseconds)

US5054294A - Compressor discharge temperature control for a ...

https://patents.google.com/patent/US5054294A/en
In an air conditioning system with a variable speed compressor drive, the discharge temperature is sensed and if it is found to exceed a predetermined ...

US5586445A - Low refrigerant charge detection using a combined ...

https://patents.google.com/patent/US5586445A/en
The lack of oil combined with high temperatures eventually causes ... refrigeration system is operating normally and a high discharge temperature would not be ...

MARINE ENGINEERING KNOWLEDGE BY RAJAN ...

https://sites.google.com/site/frerfuninstudy/refrigeration-system-questions-with-answer
... cause the discharge temperature of an Freon refrigeration compressor to increase? ... 23) One cause of high head pressure occurring in a refrigeration system ...

US5290154A - Scroll compressor reverse phase and high discharge ...

https://patents.google.com/patent/US5290154A/en
... abnormal compressor operating conditions, including high discharge temperature, it will not deform. ... Method and apparatus for monitoring a refrigeration-cycle ...

EP2198212A1 - Suction superheat control based on refrigerant ...

https://patents.google.com/patent/EP2198212A1/en
The controller 32 for the refrigerant system 20 can utilize the sensed discharge temperature ... Dynamic superheat control for high efficiency refrigeration ...

US5248244A - Scroll compressor with a thermally responsive ...

https://patents.google.com/patent/US5248244A/en
The high spot takes all the load (normal force) and causes high local friction and resultant local heat. ... Reverse phase and high discharge temperature ...

EP0604358A1 - A scroll compressor with a thermally responsive ...

https://patents.google.com/patent/EP0604358A1/en
The high spot takes all the load (normal force) and causes high local friction and resultant local heat. ... Reverse phase and high discharge temperature ...

MARINE ENGINEERING KNOWLEDGE BY RAJAN - AIR ...

https://sites.google.com/site/frerfuninstudy/air-conditioning-system-question-and-answer
Air in the System. Indication: 1. This may cause the refrigeration compressor to overheat, with a high discharge pressure and normal condensing temperature.

US7234310B2 - Very low temperature refrigeration system having a ...

https://patents.google.com/patent/US7234310B2/en
In an alternative arrangement, high temperature discharge gas is brought ... discharge pressure and the associated compression ratio and causes reduced system ...

US20070089435A1 - Predicting maintenance in a refrigeration system

https://patents.google.com/patent/US20070089435A1/en
27 is a flowchart illustrating the compressor high discharge temperature monitoring algorithm; ... High discharge temperatures (e.g.,>300 F) cause oil break-down.

EP2623898A1 - Hot water supply system - Google Patents

https://patents.google.com/patent/EP2623898A1/en
Accordingly, a discharge gas at low temperature in the high-temperature refrigeration cycle Ra can be warmed by heat of hot water guided into the water heat ...

US5209076A - Control system for preventing compressor damage in ...

https://patents.google.com/patent/US5209076A/en
... abnormal. Sensors in the refrigeration system sense conditions such as refrigerant pressure and temperature, superheat, oil pressure and motor current draw ...

US4493191A - Transport refrigeration system with control for top ...

https://patents.google.com/patent/US4493191A/en
... discharge temperatures from the unit; and. FIG. 4 ... high temperature discharge air. The outputs of ... high to low and causing AND gate A2 to go low.

US9599384B2 - Compressor discharge control on a transport ...

https://patents.google.com/patent/US9599384B2/en
In a refrigeration system having a compressor, a condenser, an evaporator, and a controller for controlling an expansion valve, a process for controlling ...

US7596959B2 - Monitoring compressor performance in a ...

https://patents.google.com/patent/US7596959B2/en
... refrigeration system can cause food quality ... high discharge temperature monitoring algorithm; ... Temperature control system for refrigeration apparatus.

CN102147144A - Control method for preventing overhigh exhaust ...

https://patents.google.com/patent/CN102147144A/en
... higher, can guarantee can not occur causing because of excessive discharge temperature the generation of the problem of air-conditioning unit damage. When ...

US7316120B2 - Refrigeration/air conditioning equipment - Google ...

https://patents.google.com/patent/US7316120B2/en
This variation causes ... This higher discharge temperature also increases the temperature of the refrigerant ... cooling in a refrigeration system. EP0800940A3 ...

EP0348333A1 - Quench expansion valve refrigeration circuit ...

https://patents.google.com/patent/EP0348333A1/en
... discharge temperatures that are too high. If ... temperature control system having an increased heating capacity and a method of providing the same.

US5148684A - Injection valve for a refrigeration system - Google ...

https://patents.google.com/patent/US5148684A/en
... temperature applications the compression ratio of a single stage compressor causes high discharge temperatures. One solution to the problem is to provide ...

US20150330691A1 - System and method for monitoring ...

https://patents.google.com/patent/US20150330691A1/en
The method further includes outputting, with a discharge sensor, a discharge temperature signal corresponding to a discharge temperature of refrigerant from the ...